Introducing the 3 in. x 18 in. Aluminum Oxide Sanding Belt Set in 5-Popularly Used Grits by POWERTEC. This premium assortment pack of 20 was designed to provide you with a cost effective set of long lasting and high performance sanding belts in a range of grits. From 40 grit to 120 grits, this comprehensive selection of popular grit sizes specifically allows you to sand through all the extra coarse to medium stages of your project. Additionally, these belts work exceptionally well with lite and non-ferrous metals, blending welds, fiberglass, plastic, and rubber. Each belt flaunts an X-weight clothed backing, and possesses a strong resin on resin bond with well crafted seams for long lasting results. Whether you're a professional or DIY kind of guy, these heavy duty sanding belts are compatible with many of your go-to sanders, including: Craftsman, Makita, Skil, Wen, Ridgid, Porter-Cable, Black+Decker, Bosch, Triton, Hitachi, Metabo, and more.